Self-assured: The 34-year-old blazed confidence in a clingy knit top and tight grey skirt during her outing

Buffer: Kanye stood watch at the door as the couple prepared their departure from the crowded eatery

Lead the way: Kim high-heeled it to their waiting vehicle while Kanye trailed a few steps behind

Epitome of elegance: The Keeping Up With The Kardashians star wasn't bothered by the curious stares

Then again, they are one of the best-dressed couples of the century so far.

Their outing also included a bit of shopping, for a burly bodyguard was spotted carrying a new boxed baby seat up to their New York City townhouse that was presumably for the couple's daughter North, 17 months.

Kim also had another reason to celebrate to be sure - her forthcoming selfie book has been given a release date of April 28, 2015, as reported by Us Weekly.

'American icon': Details about Kim's upcoming selfie book have been released including a biographical note in which she describes her life as a wife and mother

'Modern-day Marilyn Monroe': The publisher's book description compares Kim to the blonde screen siren of the 1950s and goes on to call her 'one of the most recognizable and iconic celebrities in the world'

That's why she's a fashionista: Kim's ensemble was well-matched from the grey coat to the pointy grey heels

Kim Kardashian Selfish features 1,200 pictures that the star took during her vacation to Thailand earlier in the year.

She also added a biographical note describing her life as a wife and mother:

'A new mom to her daughter, North, and happily married to the rapper Kanye West, Kim Kardashian is on top of the world, and this collection of hand-picked images from her personal archive is a tribute to her fans who have supported her through her very highly publicized journey.'

Curbside service: Kanye waited to offer his arm to his wife in front of the restaurant

Look what North got: Kim and Kanye had a new boxed baby seat delivered to their NYC townhouse on Friday

The publisher's book description calls Kim 'one of the most recognizable and iconic celebrities in the world.'

It continues: 'From her early beginnings as a wardrobe stylist, Kim Kardashian has catapulted herself into becoming one of the most recognizable celebrities in Hollywood.

'Hailed by many (including Givenchy designer Riccardo Tisci) as the modern-day personification of Marilyn Monroe, Kim has become a true American icon.'

Helping hand: Kim has said that her husband helps her put together outfits so well done Kanye